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Penrite MC-4ST 100% PAO Ester 10W-40 Motorcycle Oil 2.5L $44.10 + $12 Delivery ($0 C&C/ In-Store) @ Repco

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Penrite MC-4ST 100% PAO Ester 10W-40 Motorcycle Oil 2.5L $44.10 + $12 Delivery ($0 C&C/ In-Store) @ Repco
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megadeth on 26/07/2025 - 23:18 repco.com.au (276 clicks)
Last edited 26/07/2025 - 23:53 by 1 other user

Was looking for some motorcycle oil for my bike. This is pretty nice stuff for bikes with wet clutches. Has JASO MA2 spec. Good for summer time oil. 4L is also cheap presently.

Autobarn also has it on special but a couple of bucks dearer.

PREMIUM 100% PAO and ESTER base oils for maximum heat resistance and high performance
FULL ZINC+ additive pack for ultimate wear protection
SHEAR FREE formulation eliminates viscosity loss
LATEST oil technology for less wear, sludge and piston deposits
MAXIMUM power and acceleration
FACTORY PROVEN by competition race teams
Backward compatible and suitable for use with SM, SL, SJ, SH and SG oils
Trusted protection for performance engines

Automotive 10W-40 Engine Oil Penrite

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Comments

  • kenjai on 27/07/2025 - 01:00
    +1

    I have been using this for 3 of my bikes. Runs about 5000km fine, though not the best oil since it is only MA not MA2.

    • AdamFury on 27/07/2025 - 05:51

      I always thought this was pretty top tier! What do you recommend?

      • nahalyon on 27/07/2025 - 06:59

        I actually thought this was top tier because it is Ester oil but since @kenjai mentioned it, it is only JASO MA. I was looking at this for my next service but I will probably stick with my usual Penrite Full Synthetic one as it is JASO MA2.

        • megadeth on 27/07/2025 - 08:52
          +1

          This is MA2 too. Check specs here. Think it's just that Penrite is yet to change old labelling.

          • nahalyon on 27/07/2025 - 10:26
            +1

            @megadeth: Ah indeed, very interesting. Thank you for linking that.

          • ATangk on 27/07/2025 - 17:07

            @megadeth: Surprising they haven't changed the labelling as its good for them to. I just use the yellow full synth stuff most of the time and that is correctly labelled MA2

          • kenjai on 28/07/2025 - 00:47

            @megadeth: Unless they have updated it, I will check when I go Repco to pick them up. Please see the link, my two bottles are MA not MA2. https://ibb.co/VcHCybXG

      • kenjai on 28/07/2025 - 00:49

        7100, I believe it is 100% ester? though It is quite expensive compared to this Penrite. That said, this oil is completely dependable in any situation.

    • MasterScythe on 27/07/2025 - 11:05

      But its MA2..?

  • edrift on 27/07/2025 - 08:11
    +1

    I normally get this one
    Always get confused because penrite have so many different variations of 10w40 motorcycle oil
    https://autobarn.com.au/ab/p/OA03618?gad_source=1&gad_campai…

    I think this one at Autobarn is better as it's 4L so cheaper per litre. Also full synthetic

    • megadeth on 27/07/2025 - 09:38

      True, especially if you use it more than one bike, else you're better off with 2.5L and buy a fresh 2.5L at the next oil change interval.

    • alphas on 27/07/2025 - 10:44

      I've always wondered what the difference is between the Penrite "factory racing" of the post vs this one.
      I'm sure there is a quality difference but since both are fully synthetic it must be pretty small

      • MasterScythe on 27/07/2025 - 11:09
        +1

        The ones that say racing were designed for short fill intervals.

        Usually with borderline risky levels of Zinc, and much less cleaning additives like Calcium.

        Basically; all focus is on 'lube that hard working engine' everything else is expected to be done by the storage oil after the race.

        Its hard to find now; I think they overestimated how many people understand oil formulation.

        They toned down the 'Racing' blends a little after that, and added a "premium 10" PAO/ester line to provide an alternative too.

  • wiewie on 27/07/2025 - 13:07

    Always use this oil because my up/down quickshifter run smoother compare with other brand with same specs.

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